Ive never used it or really followed it's claims, though I have heard of it. Is it listed as a BP 'substitute' like Pyrodex, or is it a smokeless that is 'supposed' to operate at BP pressures? Do you throw charges by volume as with BP, or by a reduced weighed charge?
Unless it is an actual BP substitute, you, as always, are on your own. Just remember,'beyond this place, there be dragons'.